44303221 has 12 divisors (see below), whose sum is σ = 46883340. Its totient is φ = 41856320.

The previous prime is 44303183. The next prime is 44303239. The reversal of 44303221 is 12230344.

It can be written as a sum of positive squares in 2 ways, for example, as 17522596 + 26780625 = 4186^2 + 5175^2 .

It is a de Polignac number, because none of the positive numbers 2^k-44303221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44303251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46611 + ... + 47551.

It is an arithmetic number, because the mean of its divisors is an integer number (3906945).

Almost surely, 2^44303221 is an apocalyptic number.

It is an amenable number.

44303221 is a deficient number, since it is larger than the sum of its proper divisors (2580119).

44303221 is an equidigital number, since it uses as much as digits as its factorization.

44303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 44303221 is about 6656.0664810382. The cubic root of 44303221 is about 353.8439442170.

Adding to 44303221 its reverse (12230344), we get a palindrome (56533565).

The spelling of 44303221 in words is "forty-four million, three hundred three thousand, two hundred twenty-one".